Suction-burner



G. BELLON. sucTioN BURNER.

APPLICATION FILED AUG. l?, 1920.

1 ,7369,605. Patented Feb. 22, 1921.

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G. BELLON.

SUCTION BURNER.

APPLICATION FILED Aue. 17, 1920.

1,369,605.,l Patented Feb. 22, 1921.

2 SHEETSSHEI-:T 2.

E17/v can/ bol .F..Be LZ/ozL enonens BnLLoN, or VINCENNES, FRANCE, assienoa To La SOCIETE Das' ANCIENS ETLISSEMENTS LoY a AUB, or Panis, Farmen.

SUCTION-BURNER ieeaeee,

i Specification of Letters Patent.

Patented een. ae, ieee.

y Applicationnled August 17, 1920. Serial No. 404,223.

To all whom t may concern Be it known that I, GEORGES ALEXANDRE PHILIPPE BELLoN, citizen of the French Reniblic, residing at Vincennes, 2 ter rue du loulin, lil rance, have invented certain new and useful Improvements in or Relating to Suction-Burners, of which the following is a specification.

Regulation of supply of oil in burners at present used in industry for firing furnaces or other similar apparatus is geii'erally obtained by means of a cock or any similar part which acts so as to reduce the liquid vein. rThis process of regulation has the drawback of @dering difficulties of regulation and of necessitating frequent stoppages. f

The invention relates to a burner in which the driving of oil is obtained by suction of the air required for the combustion, and

which does not comprise, for the regulation' of the supply, any device acting on the liquid vein itself.

The invention consists in varying the height of the column of oil to be sucked in, so as to enable the oil to be drawn in more or less easily, and in varying the force of the said suction, owing to which, by the simultaneous use of these two methods, a very accurate and very wide regulation can bc obtained, which can extend as far as comlplete stoppage of the supply. It is obvious that this method of regulation could be carried out in practice in varions ways, and therefore the construction of burner shown in the accompanying drawings is merely given by way o example.

Referring to the drawings Figure 1 is a side view partly in section of my improved device.

Fig. 2 is a vertical sectional view of the burner showing means for accelerating the starting of the saine.

The apparatus comprises a casing a provided with a cone b, the position of which can be adjusted Yby screwing and with a nozzle c which terminates in an oil supply pipe d dipping into the tanke. This tankv rests on a hand wheel f tapped in the center and through it passes in t e direction of its axis a rod g screw threaded in its bottom portion so as to control the vertical movement of the hand wheel and mounted rig idly at its base. A. guide constituted by a pin It secured to the central sleeve e1 of the tank e and traveling in, a groove z' provided in tlie rod g, prevents the tank from participating during its vertical movement to the rotation of the hand wheel f.

'The casing a, is mounted on the air admission pipe j and is firmly secured to it by means of the bracket 7c pivoted at Z, and-of the screw m; to dismantle the apparatus, it is suihcient to disengage the said screw m from its seat, on the casing a and to turn the latter. v

Oil arrives through the pipe n into the tank e and fills the latter up to the overflow o from where the excess of oil is guided toward the main tank in order to be after- Ward raised again into the tank e. The conduit le admits air to the casing a whence it escapes through the cone b roducing a vacuum in the nozzle c. The oil)thus drawn, rises through the pipe d' and is discharged through the nozzle c into the furnace where itis easily ignited.

ln order to increase the supply of oil, with the cone b occupyingy theposition shown in the drawing, the tank e is raised by means of the hand wheel f; the resistance to suction decreasing owing to the decrease in the height of the column of oil to be drawn in, the oil arrives in a greater quantity at the nozzle c.

The supply can be decreased either by advancing the cone c, or by lowering the tank e, or by the combination of these two movements.

In the first case, by exaggerating the unscrewing of the cone, for instance by making it to pass beyond the nozzle c, it is possible to force air into the latter, and in that way to stop completely the supply of oil.

ln the' second case, theheight of the columnof oil drawn in, increasing with the lowering of the tank, the suction takes lace with greater and greater difficulty an the oil reaches the nozzle in a less large quan tity. f

Finally, for stopping the burner, it is suicient to shut ed the admission of air; the suction being thus suppressed, theoil which is still in the nozzle, will return to the tank through the pipe ci; in this'way, as oil canl be injected into the furnace or other apparatus without assistance of air, all danger of fire is eliminated, and the reliability of working is guaranteed.

Without it being necessary to insist on it,

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it is easy to understand the advantages offered by this apparatus.-

It has not got any micrometric or other cocks, or any needle valve which is always liable to get choked by dirt; in spite of that, the supply of oil can be regulated in a very exact manner; no pressure acts direct on the oil, and the apparatus Works with low pressure; finally, it is easy to look after, and

its dismantling could be effected instantaneously.

Besides, in order to accelerate the starting of the aboveV described burner, a propeller with adjustable pitch is arranged in the air inj ection tube and in line With the oil supply ipe. This propeller enables the flame to be rought nearer to or farther away from the end of the burner.

The supply tube of the pipe c is extended' in the air injection nozzle b by helical blades p with an adjustable pitch. They engage with a fixed cylindrical sleeve g and are pivoted at their free end to the said sleeve Q by means of trunnions 11 which pass through them. The outer sleeve g forming-a guide and extending the oil supply tube c beyond the air injection nozzle I), is locked by the engagement of a projection s which passes through the eye of a rod t secured. to the body .a of the burner.

Itis obvious that in moving the oil supply tube at an angle by means of the handle u,

the oil supply tube c which is screwed into the body a of the burner, the blades p which are secured with their endsl by means of the trunnions r, are given a movement of torsion to which is added according to the di- `merely by Way of example, and that it and in what manner the same is to be performed, I declare that what I claim is:

l. A device of the kind described comprising a reservoir having an open top, a pipe extending into said reservoir for feeding' liquid fuel thereto, a burner, a pipe for feeding liquid fuel from the reservoir to the burner, having a portion extending downwardly into said reservoir and having an open lower end, the lower ends of both' of said pipes being adapted to be sealed by liquid fuel contained in the reservoir, and means for vertically adjusting said reservoir relatively to said pipes in order to regulate the feed of fuel to the burner.'

2. A device of the kind described inc1uding a bracket provided with a vertical post having a' threaded portion, a nut wheel engaging the threaded portion of said post, a reservoir resting on said wheel and having an open top, `a burner having means for supplying air thereto, and a pipe supplying liquid fuel'to said burner and provided with a downwardly extending vertical extension having an open lower end located within the reservoir, a body of liquid fuel con tained in the reservoir and sealing the lower end'of said pipe, and means forfurnishing liquid fuel to said reservoir.

3.' A ldevice of the kind defined by claim 1 in which the pipe for furnishing liquid fuel to the burner is provided with a rotatable portion having a nozzle at its forward end provided with a plurality of flexible bars, a burner casing carrying a fixed cylinder, said bars being located in said cylinder, and means for pi'votally connecting the forward-ends of said bars to lsaid cylinder.

- In testimony, that l claim the foregoing as my inventi'om'l have signed my naine in presence of two subscribing witnesses.

y GEORGES BELLON. Witnesses:

CLEMENT S. EDwARDs, LUCIEN MARMAG.

now particularly described and. 

